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...uted, and recompute it! releaseMemory(); // Then, recompute the slot indexes. There is a function renumberIndexes, // but it doesn't respect our new ordering of instructions, so do this by // completely clearing the results of the slot index analysis and simply // calling it again. indexes_->releaseMemory(); indexes_->runOnMachineFunction(*mf_); // Now compute live intervals again. That's it! computeIntervals(); The fixKillInformation() function is also mine; it updates the isKill flags of MachineOperands and the lists of killing instructions maintained by LiveVaria...

Hi, thank you for your explanations. In order to get a pre-RA scheduling, I would need something like: - LiveVars - PhiElim - TwoAddr - LiveIntervals - Coalescing - Scheduler (new) - SlotIndexing - LiveIntervals2 (new) - RegAllocMy qeustion then is, is it really so difficult to create the live intervals information, with modifications to the original algorithm, or even from scratch?